How much revenue did Kerbal Space Program make?

An estimated 73.5M to 197.6M net after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Kerbal Space Program sell?

Q: How many copies did Kerbal Space Program sell?

An estimated 6.7M to 10.9M copies, based on its 144k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 6.7M–10.9M; $73.5M–$197.6M net $133.6M–$303.9M gross; from 144k reviews (Overwhelmingly Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

Does this actually work?

We left Kerbal Space Program out and predicted the genre from its 8 similar games. Every figure here, including Kerbal Space Program's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 5.2M–9.8M

best case 21.6M (No Man's Sky)

The Space lane

A big, proven genre: most sell around 5.9M copies.

A typical game

≈ 5.9M copies

≈ $56.3M after Steam's cut

from ~140k reviews

Best case

≈ 21.6M copies

No Man's Sky · ≈ $500.4M after Steam's cut

from 411k reviews

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with Open World + Open World Survival Craft, priced around $60.
The games you compared span 2015 to 2021, a lane with a long track record.
A typical game here lands in Diamond ($1M+ before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

Game	Price	Reviews	Tags	Est. copies	Est. revenue
ASTRONEER 2019	Est. copies ≈ 4.0M–6.5M SteamSpy 2M–5M	Est. revenue $32.9M–$88.4M net $59.8M–$136.1M gross	$29.99	139k reviews Very Positive	MultiplayerOpen World +6
Stellaris 2016	Est. copies ≈ 7.8M–12.7M SteamSpy 2M–5M	Est. revenue $107.6M–$289.3M net $195.7M–$445.1M gross	$49.99	196k reviews Very Positive	SpaceGrand Strategy +6
Oxygen Not Included 2019	Est. copies ≈ 4.1M–6.7M SteamSpy 2M–5M	Est. revenue $28.2M–$75.7M net $51.2M–$116.5M gross	$24.99	142k reviews Overwhelmingly Positive	Colony SimBase-Building +6
No Man's Sky 2016	Est. copies ≈ 16.4M–26.7M 2.9x vs typical SteamSpy 5M–10M	Est. revenue $271.3M–$729.5M net $493.3M–$1122.2M gross	$59.99	411k reviews Very Positive	Open WorldOpen World Survival Craft +6
Dyson Sphere Program 2021	Est. copies ≈ 2.3M–3.7M SteamSpy 2M–5M	Est. revenue $12.4M–$33.4M net $22.6M–$51.4M gross	$19.99	91k reviews Overwhelmingly Positive	AutomationSpace +6
Elite Dangerous 2015	Est. copies ≈ 4.9M–8.0M SteamSpy 2M–5M	Est. revenue $27.2M–$73.1M net $49.5M–$112.5M gross	$19.99	107k reviews Mostly Positive	Space SimSpace +6
RimWorld 2018	Est. copies ≈ 7.4M–12.0M 1.7x vs typical SteamSpy 5M–10M	Est. revenue $70.9M–$190.6M net $128.9M–$293.2M gross	$34.99	242k reviews Overwhelmingly Positive	Colony SimBase-Building +6
Space Engineers 2019	Est. copies ≈ 3.9M–6.3M SteamSpy 2M–5M	Est. revenue $21.2M–$57.0M net $38.6M–$87.7M gross	$19.99	134k reviews Very Positive	SpaceSandbox +6